Preheat your oven to 425°F (220°C)
Spread butter on one side of each slice of bread
Place 4 slices of bread, butter-side down, on the baking sheet
Layer each slice with 2 pieces of cheese, a few basil leaves, and a handful of halved cherry tomatoes
Drizzle with balsamic glaze, if using, for extra flavor
Top with the remaining slices of bread, butter-side up
Place the baking sheet in the oven and bake for 5 minutes
Flip the sandwiches using a spatula and bake for another 5-7 minutes, or until both sides are golden brown and the cheese is melted
Slice each sandwich and serve warm
Enjoy!!!